Sorry if i am asking too many questions but i need to know, lol...Now with the 6.0L...im pretty sure that would bolt right up to my 4l60e but would it be too much for it?...i see everyone using the 4l80e for the 6.0L...and what is the exact difference between a long block and a short block?...would they both bolt up in the same engine bay?
'99 5.3L Silverado
Interior: 3 10" Kicker comp CRV 600w (2 mounted in custom black suede covered console), 5" tv mounted in the rear of the console, DVD player in the glove box, Hifonics 1200w mono-block Brutus Amp, Blue under-seat lighting with blue lit dash switch, Paint-matched dash
Exterior: AEM Brute force CAI, custom Flowmaster super 40 cat-back before tire dump, Shorty headers (Wrapped), LS1 Hotcam with a top-end rebuild @130K, Nelson tune, paint-matched SS bumper cover, Billet, paint-matched mirrors, painted stockies
"Fighting on the internet is like running in the Special Olympics...if you win, you're still retarded."
The 4L60e will be fine behind a stock 6.0L. As with any engine, once you start building more HP you're going to start finding weak links in your driveline. Most often it will be the G80 if you have one. Next would be the stock transmission that should be built up to handle the additional HP.
The 6.0L will bolt right in replacing the 4.8 or 5.3 engine without any real mods other than a PCM tune update.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
A longblock is the term for a complete engine without its accessories. A shortblock is the term for an engine without cylinder heads ( Block, Crank, Rods, Pistons ). A G80 is the GM designation for the differential that most of our trucks have in them.
man, thanks for all the help...i know it could be annoying answering the simple questions but it really really helps..and probably not just me! thanks!
'99 5.3L Silverado
Interior: 3 10" Kicker comp CRV 600w (2 mounted in custom black suede covered console), 5" tv mounted in the rear of the console, DVD player in the glove box, Hifonics 1200w mono-block Brutus Amp, Blue under-seat lighting with blue lit dash switch, Paint-matched dash
Exterior: AEM Brute force CAI, custom Flowmaster super 40 cat-back before tire dump, Shorty headers (Wrapped), LS1 Hotcam with a top-end rebuild @130K, Nelson tune, paint-matched SS bumper cover, Billet, paint-matched mirrors, painted stockies
"Fighting on the internet is like running in the Special Olympics...if you win, you're still retarded."
I would focus my attention on the 4L60E first, then the G80. Both are prone to failure under modified 6.0L (have a few personal friends that have blown each a number of times). With the trans, you'll hear the standard items as performance upgrades such as Transgo HD2, servos (I'd use Sonnax 2nd & 4th), Red Eagle clutches, etc. But, there's an assortment of weak components that might seem small, but are important to look at (i.e. 1-2 accumulator piston, forward sprag... just to name a couple).
Make sure your budget allows for replacing that G80 with an Eaton or Auburn unit (POSI). That's a great investment b/c the G80 is a bomb under increased power of a mod'd 5.7L or 6.0L (5.3L N/A might last w/ TM, but then again, removing TM on any one of those may help end the G80's life sooner than expected).
Good luck!
5.3L '86 Silverado (E/T: 14.37s @ 94mph) - First Time Out!Test-n-Tune (Nov 23, 2008) - 13.65s @ 98mph
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